Holder for a guitar tuner



FIG. 1 is a rear elevational view of a holder for a guitar tuner showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view, the right side being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken line showing of the sound hole and pick guard of a guitar body is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a holder for a guitar tuner, as shown and described. 